52 results about "Resorcinol diglycidyl ether" patented technology

The invention belongs to the technical field of sealants and relates to a sealant for a photovoltaic module. The sealant is characterized by comprising the following raw materials in parts by weight: 100 parts of E-51 epoxy resin, 15-25 parts of 201 polysulfide rubber, 10-15 parts of m-phenylenediamine, 10-20 parts of dibutyl phthalate, 1-3 parts of diethylenetriamine, 30-50 parts of talc power, 10-15 parts of maleic anhydride, 15-20 parts of 651 low-molecular-weight polyamide, 4-6 parts of stannous octoate and 20-30 parts of epoxypropane phenyl ether or diglycidyl resorcinol ether or ethylene glycol diglycidyl ether. The invention also discloses a preparation method of the sealant. The sealant disclosed by the invention has the beneficial effects of convenience in operation, short curing time, good adhesion, low water vapor and gas permeability, good sealing property / weather resistance and UV resistance and wide application temperature range and the long-term performance is maintained.

A wet friction material is disclosed bonded to a plate for transmission of motion, with the friction material made up of a porous fiber substrate, which is at least partially impregnated with a catalyzed resorcinol diglycidyl ether resin to improve properties.

The invention relates to the technical field of sealing materials, and in particular relates to a sealing adhesive specific for a solar photovoltaic module. The sealing adhesive is characterized by being prepared from the following raw materials in parts by weight: 90 parts of polydimethylsiloxane, 8 parts of white carbon black or titanium dioxide, 18 parts of phthalic acid dibutyl ester or triphenyl phosphate, 12 parts of resorcinol diglycidyl ether or ethanol, 7 parts of acrylamide, 4 parts of phthalic anhydride, 13 parts of aluminum hydroxide or magnesium hydroxide, 30 parts of glass fiber or asbestos fiber with the maximum size of 0.05mm, 4 parts of anti-aging agent D, 2 parts of methylparaben and 5 parts of methyl trimethoxy silane or ethyl trimethoxy silane. The invention further discloses a preparation method of the sealing adhesive. The sealing adhesive has the beneficial effects that the tensile strength is relatively high, the breakage elongation is relatively high, the volume resistivity is relatively high, the dielectric strength is relatively high, the binding force is relatively high, the anti-yellowing resistance and the cracking resistance are relatively good, the expiration date is relatively long, and the like.

The invention discloses 5-aldehyde resorcinol diglycidyl ether and a preparation method thereof, relates to glycidyl ether and a preparation method thereof, and aims at solving the problem of poorer bonding strength of the conventional glycidyl ether epoxy resin at high temperature. The preparation method of the 5-aldehyde resorcinol diglycidyl ether comprises the following steps: firstly, putting3,5-dihydroxy benzaldehyde, epibromohydrin and a catalyst into a reaction still, raising the temperature for reaction, decompressing and evaporating out to obtain a concentrated solution; secondly, after the temperature of the concentrated solution is lowered, adding an organic solvent and metal alkali solid particles and stirring; thirdly, after the reaction ends, repeatedly washing with water,and separating liquid to remove an aqueous phase; finally, performing reduced pressure distillation on an organic phase to remove an organic solvent, and recycling to obtain the 5-aldehyde resorcinoldiglycidyl ether. The 5-aldehyde resorcinol diglycidyl ether is used for preparing a high temperature resisting epoxy resin adhesive. The epoxy resin adhesive prepared from the 5-aldehyde resorcinol diglycidyl ether disclosed by the invention has the characteristic of high temperature resistance. The 5-aldehyde resorcinol diglycidyl ether and the preparation method disclosed by the invention are used for the field of the epoxy resin adhesives.

The invention relates to the technical field of polymer sealing materials, in particular to a special sealant for solar photovoltaic modules, which is characterized in that it is composed of the following raw materials in parts by weight: polydimethylsiloxane: 90 parts, white carbon black Or titanium dioxide: 8 parts, dibutyl phthalate or triphenyl phosphate: 18 parts, resorcinol diglycidyl ether or ethanol: 12 parts, acrylamide: 7 parts, phthalic anhydride: 4 parts Parts, aluminum hydroxide or magnesium hydroxide: 13 parts, glass fiber or asbestos fiber with a maximum size of 0.05 mm: 30 parts, antioxidant D: 4 parts, methylparaben: 2 parts, methyltrimethoxysilane Or ethyltrimethoxysilane, etc.: 5 parts. The invention also discloses its preparation method. The invention has the advantages of greater tensile strength, higher elongation at break, greater volume resistivity, higher dielectric strength, stronger adhesion, better resistance to yellowing and cracking, and longer shelf life. Effect.

The invention provides a high-strength strong-acid / alkali-resistant epoxy resin sealant, relating to the technical field of adhesives. The sealant is characterized by comprising the following components in parts by weight: 100 parts of E-51 epoxy resin, 50 parts of resorcinol diglycidyl ether, 15 parts of JLY-121 polysulfide rubber, 200 parts of HG-600 activated silica micropowder, 10 parts of titanium white, 2 parts of KH-550 and 2 parts of chromic oxide. The components are cured by heating. The adhesive is simple in formula and convenient to manufacture, and has the advantages of excellent curing property and favorable technical properties.

The invention relates to the field of refractory materials, and discloses a two-component refractory brick and a production method thereof. The brick is produced from a slurry A and a slurry B; the slurry A includes fused chromium oxide, sintered chromium oxide particles, chrome corundum particles, alumina micro-powder, magnesium oxide micro-powder, zirconia micro-powder, yttrium oxide micro-powder, lanthanum and / or lanthanide metal oxide micro-powder, metallic aluminum micro-powder, metallic chromium micro-powder, metallic zirconium micro-powder, metallic yttrium micro-powder, resorcinol diglycidyl ether, sodium dodecyl benzene sulfonate, ethanol and water; and the slurry B includes the fused chromium oxide, sintered chromium oxide particles, chrome corundum particles, alumina micro-powder, magnesium oxide micro-powder, zirconia micro-powder, yttrium oxide micro-powder, lanthanum and / or lanthanide metal oxide micro-powder, metallic aluminum micro-powder, metallic chromium micro-powder, metallic zirconium micro-powder, metallic yttrium micro-powder, a cationic photocuring initiator, tetradecyltrimethylammonium bromide, ethanol and water. The two slurries are adopted to reduce the use amount of a binder and improve the physical properties of the refractory brick.

The invention belongs to the technical field of sealants and relates to a sealant for a photovoltaic module. The sealant is characterized by comprising the following raw materials in parts by weight: 100 parts of E-51 epoxy resin, 15-25 parts of 201 polysulfide rubber, 10-15 parts of m-phenylenediamine, 10-20 parts of dibutyl phthalate, 1-3 parts of diethylenetriamine, 30-50 parts of talc power, 10-15 parts of maleic anhydride, 15-20 parts of 651 low-molecular-weight polyamide, 4-6 parts of stannous octoate and 20-30 parts of epoxypropane phenyl ether or diglycidyl resorcinol ether or ethylene glycol diglycidyl ether. The invention also discloses a preparation method of the sealant. The sealant disclosed by the invention has the beneficial effects of convenience in operation, short curing time, good adhesion, low water vapor and gas permeability, good sealing property / weather resistance and UV resistance and wide application temperature range and the long-term performance is maintained.

The invention belongs to the technical field of powder coatings, particularly relates to an epoxidation polyester resin and further discloses a preparation method of the epoxidation polyester resin and application of the prepared powder material. The epoxidation polyester resin is prepared by copolymerizing the raw materials of diethyl terephthalate, glutamic acid, mercaptosuccinic acid, 12-hydroxy stearic acid, dyhydroxyl-1-ethyl benzene, 2,5-dimethyl-2,5-hexanediol, neopentyl glycol, resorcinol diglycidyl ether and the like, the acid value of the finally obtained polyester resin is lower than 2 mgKOH / g, the epoxide equivalent is 800-900 g / mol, the softening point is 85-105 DEG C, the polyester resin can substitute E-12 epoxy resin and the commercially available high-acid-value carboxyl polyester (the acid value is 48-52 mgKOH / g) to cure, a coating film completely reaches the requirement of the powder coating, and the prepared powder coating is better in stability and boiling resistance.

The invention discloses bio-based multifunctional flame-retardant epoxy acrylate and a preparation method and application thereof. The bio-based multifunctional flame-retardant epoxy acrylate prepolymer is prepared in two modes, diethyl phosphoacetic acid is introduced into bio-based epoxy resin through a ring-opening esterification reaction, the flame-retardant effect can be effectively achieved, and thus the flame resistance of a cured film is enhanced; the resorcinol diglycidyl ether and the epoxidized vegetable oil are used as main raw materials to prepare the multifunctional bio-based epoxy acrylate, so that biomass can be effectively introduced into a photocureable coating, and the use of petroleum-based raw materials is reduced; itaconic acid is selected to replace (methyl) acrylic acid derived from petroleum products, so that the application of biomass in the photocureable coating is increased; and the ring-opening reaction of itaconic acid and epoxidized vegetable oil has a chain extension effect on the polymer, is also beneficial to improving the functionality of epoxidized vegetable oil-based acrylate, and improves the flexibility, tensile strength and other related properties of a photocureable film.

The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of an aqueous solution and is mixed with one or more of glycerol diglycidyl ether, polyglycerol diglycidyl ether, polyglycerol polyglycidyl ether, glycerol triglycidyl ether, sorbitol polyglycidyl ether, alkoxylated glycerol polyglycidyl ether, trimethylolpropane triglycidyl ether, trimethylolpropane diglycidyl ether, polyoxypropylene glycol diglycidylether, polyoxypropylene glycol triglycidyl ether, diglycidylether of cyclohexane dimethanol, resorcinol diglycidyl ether, isosorbidediglycidyl ether, pentaerythritol tetraglycidyl ether, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether having 2-9 ethylene glycol units, propylene glycol diglycidyl ether having1-5 propylene glycol units, and / or diglycidyl ether of terminal diol having a linear carbon chain of 3-6 carbon atoms; and optionally one or more additives. The bonding resin is useful, for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards.

The invention discloses high-performance epoxy asphalt. The epoxy asphalt is prepared from asphalt, epoxy resin, 4,4-diaminodiphenylmethane, fumaric acid, benzyl dimethylamine, glacial acetic acid, ammonium humate, styrene-acrylonitrile copolymer, EO-PO segmented copolymer, polyurethane, TNPP, polyoxyethylene stearate, polyisoprene rubber powder, rosin, sulphobetaine, resorcinol diglycidyl ether, sodium gluconate and octamethylcyclotetrasiloxane. The invention further discloses a preparation technology of the high-performance epoxy asphalt. The asphalt prepared through the method is low in viscosity, not likely to be layered and good in storage stability, the tensile strength of the epoxy asphalt is 7.16-10.62 MPa, the breaking elongation rate is 510-658%, the epoxy asphalt shows good strength and toughness, early strength can be improved to a certain degree, construction is convenient, and large-scale application and popularization are promoted.

The invention discloses a composite scaffold for loading bone marrow mesenchymal stem cells and a preparation method thereof. Hydroxyapatite and modified graphene are added into methacrylated gelatin,and for improving synergy, a blender and a modifying auxiliary agent are added; a mixture of 1-(3-pyridyl)-3-(dimethylamino)-2-propylene-1-one and diglycidyl resorcinol ether is selected as the blender, and a mixture of 4-(acetylamino)-2,2,6,6-tetramethyl-1-piperidinyloxy, trimethylsilylketene ethyl trimethylsilyl acetal, N,N'-di(chlorodimethylsilane)-1,1-dimethylsilane diamine and 1,5-pentanediol diacrylate is selected as the modifying auxiliary agent. The finally prepared composite scaffold can make the stem cells survive longer, also has large elastic modulus. In addition, due to the addition of modified graphene and hydroxyapatite, the composite scaffold has good biocompatibility and is not easily rejected by a human body.

The invention belongs to the technical field of powder coatings, and in particular relates to a powder coating with excellent pinhole resistance and acid and alkali resistance and a preparation method thereof. The parts by weight of the main raw materials of the powder coating of the present invention are: 530-550 parts of hydroxyl polyether resin, 40-50 parts of B1530 curing agent, 150-200 parts of talcum powder, 120-150 parts of barium sulfate, 8-12 parts of brightening agent Parts, 7-10 parts of leveling agent; Hydroxy polyether resin is prepared by polycondensation of materials with the following molar fractions: the molar fractions of each component are: 1,4-cyclohexanedimethanol 4-8 , 1,6-hexanediol 3-6, resorcinol diglycidyl ether 5-10, propylene oxide 30-45, triglycidyl isocyanurate 4-8, octyl glycidyl ether 6-13 . The present invention uses high-functionality hydroxyl polyether resin as the raw material, the hydroxyl value is 15-20mgKOH / g, the amount of B1530 curing agent required for curing is small, the cost of powder coating is low, and it can be cured at 175°C / 15min at low temperature, and The prepared coating film has good resistance to pinholes in thick coating, and the high-functionality polyether has excellent acid and alkali resistance, and can be used for coating metal facilities in industrial cleaning places.